[dm-crypt] cryptsetup FAQ monthly pointer 10/2013

http://code.google.com/p/cryptsetup/wiki/FrequentlyAskedQuestions
- Added Item 5.20 (explain why SHA-1 is not broken as used in LUKS)
- Fixed numbering in Section 1.
Arno
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Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno at wagner.name
GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718
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There are two ways of constructing a software design: One way is to make it
so simple that there are obviously no deficiencies, and the other way is to
make it so complicated that there are no obvious deficiencies. The first
method is far more difficult. --Tony Hoare